US3095386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane polymers containing tall oil
Assignee: Bayer Corp
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Filing: 1960-05-31
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Granted: 1963-06-25
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 George A Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:56
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/6547; C08G18/08; C08G18/10; C08G18/30; C08G18/36; C08G2110/00; C08G2110/0041; C08G2110/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A SOLIDIFIED POLYURETHANE POLYMER PREPARED FROM A REACTION MIXTURE WHICH COMPRISES AT LEAST ABOUT 10 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE REACTION MIXTURE, OF TALL OIL CONTAINING AT LEAST ABOUT 10 PERCENT ROSIN ACIDS, AND ORGANIC POLYISOCYANATE AND AN ORGANIC COMPOUND CONTAINING AT LEAST TWO ACTIVE HYDROGEN CONTAINING GROUPS AS DETERMINED BY THE ZEREWITINOFF METHOD, SAID ACTIVE HYDROGEN CONTAINING GROUPS BEING REACTIVE WITH AN -NCO GROUP.
Claim 2
Dependent Claim
69 words
A SOLIDIFIED POLYURETHANE POLYMER PREPARED FROM A REACTION MIXTURE WHICH COMPRISES AT LEAST ABOUT 10 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE REACTION MIXTURE, OF TALL OIL CONTAINING AT LEAST ABOUT 10 PERCENT ROSIN ACIDS, AND ORGANIC POLYISOCYANATE AND AN ORGANIC COMPOUND CONTAINING AT LEAST TWO ACTIVE HYDROGEN CONTAINING GROUPS AS DETERMINED BY THE ZEREWITINOFF METHOD, SAID ACTIVE HYDROGEN CONTAINING GROUPS BEING REACTIVE WITH AN -NCO GROUP.
References Cited (Backward Citations)
US2968575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |